Is a non-balancing BMS safe if each cell has individual protection?

[PAAUX4]

I have have 5 3.7V cells that each have some kind of protection circuit on them connected to a basic BMS without balancing.

https://m.aliexpress.com/item/1005001327267228.html

https://m.aliexpress.com/item/32909360073.html

Do I need to care about balancing if each battery should check its voltages stay in range? Is it safe and is there anything I need to be careful with.

As an aside, I want to charge this with 20V from USB-C. Any issues with that?

Thanks.

[jonr]

Be aware of the effect on total pack capacity. Without active balancing, you are limited by the lowest cell capacity. And by any imbalance.

[PAAUX4]

Thanks for the response. I'm not too concerned about capacity right now - I just want it to work safely.